From: Brenden Blanco <bblanco@plumgrid.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: netdev@vger.kernel.org, kafai@fb.com, daniel@iogearbox.net,
tom@herbertland.com, john.fastabend@gmail.com,
gerlitz.or@gmail.com, hannes@stressinduktion.org,
rana.shahot@gmail.com, tgraf@suug.ch,
"David S. Miller" <davem@davemloft.net>,
as754m@att.com, saeedm@mellanox.com, amira@mellanox.com,
tzahio@mellanox.com, Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [net-next PATCH RFC] mlx4: RX prefetch loop
Date: Mon, 11 Jul 2016 09:00:56 -0700 [thread overview]
Message-ID: <20160711160054.GA22729@gmail.com> (raw)
In-Reply-To: <20160711130922.636ee4e6@redhat.com>
On Mon, Jul 11, 2016 at 01:09:22PM +0200, Jesper Dangaard Brouer wrote:
[...]
> This patch is based on top of Brenden's patch 11/12, and is mean to
> replace patch 12/12.
>
> Prefetching is very important for XDP, especially when using a CPU
> without DDIO (here i7-4790K CPU @ 4.00GHz).
>
> Program xdp1: touching-data and dropping packets:
> * 11,363,925 pkt/s == no-prefetch
> * 21,031,096 pkt/s == brenden's-prefetch
> * 21,062,728 pkt/s == this-prefetch-patch
>
> Program xdp2: write-data (swap src_dst_mac) TX-bounce out same interface:
> * 6,726,482 pkt/s == no-prefetch
> * 10,378,163 pkt/s == brenden's-prefetch
> * 10,622,350 pkt/s == this-prefetch-patch
>
I see the same XDP numbers in my setup with this patch as well.
[...]
next prev parent reply other threads:[~2016-07-11 16:01 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-08 2:15 [PATCH v6 00/12] Add driver bpf hook for early packet drop and forwarding Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 01/12] bpf: add XDP prog type for early driver filter Brenden Blanco
2016-07-09 8:14 ` Jesper Dangaard Brouer
2016-07-09 13:47 ` Tom Herbert
2016-07-10 13:37 ` Jesper Dangaard Brouer
2016-07-10 17:09 ` Brenden Blanco
2016-07-10 20:30 ` Tom Herbert
2016-07-11 10:15 ` Daniel Borkmann
2016-07-11 12:58 ` Jesper Dangaard Brouer
2016-07-10 20:27 ` Tom Herbert
2016-07-11 11:36 ` Jesper Dangaard Brouer
2016-07-10 20:56 ` Tom Herbert
2016-07-11 16:51 ` Brenden Blanco
2016-07-11 21:21 ` Daniel Borkmann
2016-07-10 21:04 ` Tom Herbert
2016-07-11 13:53 ` Jesper Dangaard Brouer
2016-07-08 2:15 ` [PATCH v6 02/12] net: add ndo to set xdp prog in adapter rx Brenden Blanco
2016-07-10 20:59 ` Tom Herbert
2016-07-11 10:35 ` Daniel Borkmann
2016-07-08 2:15 ` [PATCH v6 03/12] rtnl: add option for setting link xdp prog Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 04/12] net/mlx4_en: add support for fast rx drop bpf program Brenden Blanco
2016-07-09 14:07 ` Or Gerlitz
2016-07-10 15:40 ` Brenden Blanco
2016-07-10 16:38 ` Tariq Toukan
2016-07-09 19:58 ` Saeed Mahameed
2016-07-09 21:37 ` Or Gerlitz
2016-07-10 15:25 ` Tariq Toukan
2016-07-10 16:05 ` Brenden Blanco
2016-07-11 11:48 ` Saeed Mahameed
2016-07-11 21:49 ` Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 05/12] Add sample for adding simple drop program to link Brenden Blanco
2016-07-09 20:21 ` Saeed Mahameed
2016-07-11 11:09 ` Jamal Hadi Salim
2016-07-11 13:37 ` Jesper Dangaard Brouer
2016-07-16 14:55 ` Jamal Hadi Salim
2016-07-08 2:15 ` [PATCH v6 06/12] net/mlx4_en: add page recycle to prepare rx ring for tx support Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 07/12] bpf: add XDP_TX xdp_action for direct forwarding Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 08/12] net/mlx4_en: break out tx_desc write into separate function Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 09/12] net/mlx4_en: add xdp forwarding and data write support Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 10/12] bpf: enable direct packet data write for xdp progs Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 11/12] bpf: add sample for xdp forwarding and rewrite Brenden Blanco
2016-07-08 2:15 ` [PATCH v6 12/12] net/mlx4_en: add prefetch in xdp rx path Brenden Blanco
2016-07-08 3:56 ` Eric Dumazet
2016-07-08 4:16 ` Alexei Starovoitov
2016-07-08 6:56 ` Eric Dumazet
2016-07-08 16:49 ` Brenden Blanco
2016-07-10 20:48 ` Tom Herbert
2016-07-10 20:50 ` Tom Herbert
2016-07-11 14:54 ` Jesper Dangaard Brouer
2016-07-08 15:20 ` Jesper Dangaard Brouer
2016-07-08 16:02 ` [net-next PATCH RFC] mlx4: RX prefetch loop Jesper Dangaard Brouer
2016-07-11 11:09 ` Jesper Dangaard Brouer
2016-07-11 16:00 ` Brenden Blanco [this message]
2016-07-11 23:05 ` Alexei Starovoitov
2016-07-12 12:45 ` Jesper Dangaard Brouer
2016-07-12 16:46 ` Alexander Duyck
2016-07-12 19:52 ` Jesper Dangaard Brouer
2016-07-13 1:37 ` Alexei Starovoitov
2016-07-10 16:14 ` [PATCH v6 00/12] Add driver bpf hook for early packet drop and forwarding Tariq Toukan
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